Radiance is a from-scratch physically-based ray tracing engine with an integrated real-time OpenGL scene editor, built in modern C++ (C++17).
Originally started as a deep dive into graphics programming to understand how modern 3D engines work under the hood, the project evolved into my engineering thesis. It focuses on rendering architecture, acceleration structures, multithreaded systems, and editor tooling.
demo.mp4
- Physically-based materials (diffuse, metal)
- Multithreaded CPU rendering
- Recursive reflections, soft shadows, anti-aliasing
- SDF primitives and triangle meshes (glTF)
- Median-split BVH with AABB traversal
- OpenGL viewport with ImGui interface
- Scene graph and entity system
- Transform gizmos (translate / rotate / scale)
- Mesh import and GPU object selection
- CMake ≥ 3.15
- A C++17-compatible compiler (Clang, GCC, or MSVC)
- OpenGL 3.3+ capable GPU
Clone the repository and run the build script:
git clone https://github.com/cdOut/Radiance.git
cd Radiance
./build.sh